#include "mytest.h"
#
int Add(int x, int y)
{
    return x + y;
}

int Sub(int x, int y)
{
    return x - y;
}

int div(int x, int y)
{
    if (y == 0)
    {
        printf("除0错误\n");
    }
    return x / y;
}

int mul(int x, int y)
{
    return x * y;
}
